Grain-drill.



y i No. 709,637. Patented Sept. 23, I902. w. F. HOYT & n. B. SALTSMAN.

GRAIN DRILL.

(Application filed Oct. 3, 1901.)

' (No Model.)

UNITED STATES P TENT OFFICE.

WILL F. HOYT AND DAVID B. SALTSMAN, OF DOWAGIAO, MICHIGAN.

GRAIN-DRILL.

SPECIFIGATION forming part of Letters Patent No. 709,637, dated September 23, 1902.

Application filed October 3, 1901. Serial No. 77,402. (No model.)

To all whom, it may concern:

Be it known that we, WILL F. HOYT and DAVID B. SALTSMAN, citizens of the United States, residing at the city of Dowagiac, in the county of Cass and State of Michigan, have invented certain new and useful Improvements in Grain-Drills, of which the following is a specification.

This invention relates to improvements in grain-drills which are provided with doubledisk runners.

The main object of the invention is to more thoroughly adapt the spring'pressure device of the patent to Will F. Hoyt, No. 446,230, issued February 10, 1S91,to use on such disk runners, the same having proved very successful and efficient on the ordinary bladerunner.

A further object is to provide improved bearing and connections for a double-disk grain-drill, so that the surface of the disk will be properly scraped and so that the grain will be properly discharged and the lubrication will be complete and satisfactory.

A further object is to provide an improved detachable axle on which the disks revolve.

Still further objects will definitely appear in the detailed descriptionto follow.

We accomplish the objects of our invention by the devices and means described in this specification.

The invention is clearly defined, and pointed out in the claims.

A structure embodying the features of this invention is clearly illustrated in the accompanying drawingsfiorming a part of this specification, in which- Figure 1 is a side elevation of a disk runner with its draw-bar and spring-pressure device, the same being detached from the other parts of the grain-drill. Fig. 2 is an enlarged detail longitudinal sectional view on lines 2 2 of Fig. 3, showing the form and general arrangement of the parts. Fig. 3 is a transverse vertical detail sectional view taken on a line corresponding to line 3 3 of Figs. 1 and 2 looking in the direction of the little arrows at the ends of the section-lines. Fig. at is an enlarged detail sectional view on a line corresponding to line 4 4 of Fig. 2 looking in the direction of the little arrows. Fig. 5 is a detail perspective view of one of the scrapers appearing in Fig. 4.

In the drawings similar letters of reference refer to similar parts throughout the several Views.

Referring to the lettered parts of the drawings, A represents draw-bars, a pair of the same being employed, though-hut a single one appears in the drawings. These are adapted to be pivoted to the frame in the same inan ner as the draw-bars are pivoted to the frame in the patent to Will F. Hoyt above referred to. A bracket B is provided, which extends in the direction of the draw-bars to the axis of the disk, and it is formed into a broad guard B, which is curved Over the top of the pair of disks hereinafter to be described. The axle D, which supports the disks, is provided with a little lug or teatn on one side and is hollow and projects slightly forward and downwardly to each side when inserted into the transverse socket made for the same in the bracket B. A set-screw it retains the same in position. Extending down through the bracketisthetubeEwhich isaconduit and receptacle for the lubricant which is to be discharged through the apertures it onto the bearing between the hub and the spindle. A pair of fiat disks C,provided with hubs C,fit onto the opposite ends of the axle D and are so situated that they meet at their lower forward edges and diverge upwardly and rearwardly. These are held in position by the bolt F, which extends through the axle, and washers on the ends of the axles engage the hubs and retain them in position. Caps C, like the caps on the ends of the hub of a vehicle-wheel, are on the ends of the hub and inclose the bolt and retaining device for the disks and protect them from the entrance of dirt and retain the lubricant. The boot B is formed integral with the bracket B and extends from above downwardly and to the rear of the axle, as clearly appears in Fig. 2. Scrapers are provided for the insides of the disk by the downwardly-projecting portionf at the bottom of the bracket (see Fig. 2) and by the adjustable scrapers I, which are carried on a rearward extension of the bracket B, the same being formed with diagonal slots c,through which a screw 0 extends for clamping the same adjustably in position on the insides of the disks. The disks possess sufficient elasticity so that it is notnecessary to make these scrapers spring-scrapers. The

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outside scrapers J are of spring metal and have a cut-away part on the upper side to permit the escape or passage of dirt and are bolted to the bracket B just beneath the flange B". The flange B is of the same width transversely as the boot B and extends continuously from the boot forwardly and downwardly to the draw-bars A. This of course protects the front of the disk from any clods or dirt dropping in at that point to clog them; but the main object of this flange is to serve as a guide for the spring-pressure rods G, so that a pair of these rods can be secured at their upper ends to the front portion of the draw-bars A and extend rearwardly to each side of the boot B and connect to a yoke or fork H, as clearly appears in Figs. 1 and 3. This fork H is connected to an arm of a rockshaft or any other suitable means for applying pressure, and this device makes it possible and practical to use the improved spri ng-pressure device of the said Hoyt patent on a graindrill having disk runners.

The improvement has been described in all details; but it is desired to remark that the same may be modified and varied in almost all particulars without departing from the invention. The bracket,with the broad flange connected to the boot to serve as a guide for the spring-pressure rods,could be used on almost any style of disk grain-drill. The springs of this kind have the advantage that they are durable, and our experience shows that they last as long as any other part of the machine. They are very flexible, and the runners or markers are completelyindependentin move ment up and down, which is very desirable in uneven ground and permits a wide latitude of adjustment of the pressure.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a grain-drill, the combination of the draw-bars A adapted to be pivoted to the main frame; the bracket B with a boot B having a flange extension B of equal width extending from said boot to the draw-bars; suitable axles carried by said draw-bars projecting at each side forwardly and downwardly; flat disks carried on said axle and beneath the said flange B; spring-pressure rods connected at their forward ends to the draw-bars and extending rearwardly on each sideof the boot B; and a fork or yoke H connected to the rear ends of the same whereby pressure can be applied to the rear ends of the pressurerods, all coacting for the purpose specified.

2. In a grain-drill, the combination of the draw-barsAadapted to be pivoted to the main frame; the bracket B with a boot B having a flange extension B"; suitable axles carried by said draw-bars projecting at each side for-- wardly and downwardly; flat disks carried on said axle-and beneath the said flange B; spring-pressure rods connected at their forward ends to the draw-bars and extending rearwardly on each side of the boot B; and

a fork or yoke H connected to the rear ends of the same whereby pressure can be applied to the rear ends of the pressure-rods, all 00- acting for the purpose specified.

3. In a grain-drill, the combination of a draw-bar; a suitable bracket with a boot; a disk furrow-opener carried by said bracket; a flange extension onsaid bracket extending over said furrow-opener; and spring-pressure rods at each side of the boot, adapted to be guided thereby, for the purpose specified.

4. In a grain-drill, the combination of the bracket B, with a transverse aperture therethrough; an axle D with a lug 'n. to fit into said transverse aperture; a set-screw for retaining the same in position; an oil-tube E passing, down through the bracket to deliver oil into the axle D; flat disks 0, C, with hubs fitting onto the opposite ends of said axle and bolt F through the said axle to retain said hubs in position; caps over the ends of said hubs, all coacting for the purpose specified.

5. In a grain-drill, the combination of the bracket B, with a transverse aperture therethrough; an axle D with a lugn to fit into said transverse aperture; a set-screw for retaining the same in position; flat disks 0, O, with hubs fitting onto the opposite ends of said axle and bolt F through the said axle to retain said hubs in position; caps over the ends of said hubs, all coacting for the purpose specified.

6. In a grain-drill, the combination of the bracket B; downwardly and forwardly projecting axles at each side thereof; disks with suitable hubs to revolve on said axle; a boot extending down to the rear of said axle; a scraperf below the said axle and between the said disks; and adjustable scrapers I supported on a rearward extension of said bracket to scrape the same toward their peripheries.

7. In a grain-drill, the combination of a bracket; laterally projecting axles therefrom; disks upon the axles; a flange above said disks; and a scraper secured beneath the flange and extending rearwardly in contact with the exterior of said disks toward their peripheries, for the purpose specified.

8. In a grain-drill, the combination of the bracket B, with a transverse aperture therethrough; an axle D with a lug n to fit into said transverse aperture; suitable means for retaining same in position; flat disks, 0, O, with hubs fitting onto the opposite ends of said axle and bolt through the said axle to retain said hubs in position; caps over the ends of said hubs, all coacting for the purpose specified.

In witness whereof we have hereunto set our hands and seals in the presence of two witnesses.

WILL F. HOYT. [L. s] DAVID B. SALTSMAN. [L. 8.] Witnesses:

O. SCHMALZREID, H. W. PALMER. 

